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Modelling Trial-by-Trial Changes in the Mismatch Negativity

Figure 5

Bayesian model comparison of the five MMN theories (a) and the two frameworks (b).

The bar plot in the upper panel (a) summarizes the comparison of the five model families in terms of their posterior probabilities. Each bar indicates the posterior probability of a particular MMN theory (i.e. ). The most plausible explanations of our trial-wise MMN data were provided by the model adjustment hypothesis () and the prediction error hypothesis (). The lower panel (b) shows the results of comparing phenomenological () vs. free-energy based models (); see Figure 2. It shows that our free-energy based models provide considerably more convincing explanations of our MMN data than traditional change detection or adaptation models ().

doi: https://doi.org/10.1371/journal.pcbi.1002911.g005